Safety razor



Feb. 11, 1930. H. J. GAISMAN 1,747,152

SAFETY RAZOR Filed June 25. 1927 INVENTOR, Wt Vl ,M

ATTORNEY Patented Feb. 11, 1930 UNITED STATES HENRY J. GArsMAN, or NewYORK, N. Y.

, ASSIGNOR TO AUTOSTROP PATENTS COR- PORATION, 0F DOVER, DELAWAR, ACORPORATION OF DELAWARE SAFETY RAZOR Application filed .Tune 25,

The object of my invention is to provide a safety razor and means forlstropping the blade while in the razor, including simple and effectivemeans for causing the blade edge to be raised from a strop at theinitiation of the reverse movement ofthe razor along the strop forstropping ythe blade edge.

In carrying out my invention I provide a frame having strop Atensioningmeans and a second frame pivotally supported within the first namedframe, a roller to engage the strop and movable laterally relatively tothe first named frame,a blade vholder having end portions guided bythefirst named frame, said roller and blade holder-being engaged by thesecond named frame forshiftingfthe position of the blade holder, andmeans operatively connecting the roller with Vthe blade holder forrocking or rotating the latter by the former when the razor isreciprocated along the strop for stropping-the blade edge. Y

My invention also comprises means operative with the secondnamed framefor retaining the blade in shaving relationto the guard.

My invention comprises novel details of improvement that willbe morefully hereinafter' set forth and then pointed out inzthe claims.

Referenceis to be had to the accompanying drawings forming a parthereof, wherein Fig. l is a partly broken perspective view of a safetyrazor embodying my invention;

Fig. 2 is a central section illustrating the parts in shaving position;A 4

Figs. 3 and 4 are sectional detailviews illustrating the parts instropping positions;

Fig. 5 is a partlysectional sideV view of the razor, and Y Fig. 6 isasectional detail of a modification. Y

Similar numerals ofreference indicate corresponding parts intheseveralviews.

Themain frame l is shown comprising a basela and kspaced uprights orsides 1b, to which baseV a handle 2 may be secured in any desiredway,such as by screw 8. -Said frame is shown provided with spacedstrop-tension ing means, such as rollers at 4, in a well known way. Ablade holder is indicated at 5 to which a blade 6 may be attached in anyde- Lsired way. In theV example illustratedthe 1927. Serial N0. 201,345.

blade holder comprises a plate-like member upon which the blade may belaid with its cutting edge projecting beyond the holder and a bladeretainer 7 is adapted to clamp the rear portions of the blade holder andof the blade to detachably retain said parts together. In the exampleillustrated the retainer 7 comprises a piece of metal bent or folded toform spaced jaws 71 of spring-like tendencyadapted to be slid along theblade holder and the blade to retain and release the blade.l The bladeholder is shown provided with spaced projections or pins 8 adapted toenter corresponding holes 6a in the blade to retain the latter fromedgewise displacement on the holder, (Fig. 3). The blade holder ispivotally and slidably supported by the uprights 11 for which purposethe blade holder'at opposite ends is provided with pivotal means, suchas pins at 9, which pins may be riveted to ears 5 of the blade holder,(Fig. 5), although the pivotal means may be a single shaft 9extendingacross the blade holder and from opposite ends thereof intoslots 1c to which shaft the blade holder is secured, (Fig. 6). Theuprights lbare provided with laterally disposed preferably arcuate slotslc iear the outer portions of said uprights inA which the pivotal meansof the blade holder are located, whereby said pivots may slide alongsaid slots for lateral movement ofthe blade holder relatively to theuprights 1b of frame 1. rlhe metal at the ends of slots l limits thelateral movements of the blade holder inframe 1. An operating roller Iorshaft for the blade holder' is indicated atl() and `has end portions10k,a slidably guided in slots l(1 of the uprights lb to limit lateraldisplacement of said roller. Theroller illustrated comprises a shaft l0upon which roller a tube 10is mounted, the.l ends of the tube beingspaced a suitable distance frein the uprights 1b. The blade holder withtheroller lO are geared together as by. ay gear 1l secured to one of itspivots 9 Vor its shaft, and av gear l2 secured to the cerresponding endof the relier, such as to its shaft 10, (Figs. l and 5), whereby whenthe strop A engages said roller and the' razor is reciprocated along thestrop, the roller will be `rotated for rocking or rotating the bladeholder to present opposite sides of the blade at its cutting edge to thestrop for sharpening said edge. A controlling member for the bladeholder and the roller 10 is indicated at 13 and is pivotally mountedwithin frame 1, being pivoted to the uprights 1b by means of pivots 14.The controlling member 13 is shown comprising a base or cross piece 13ahaving projecting end portions or uprights 13b extending adjacent to andbetween the uprights 11J of frame 1, and between the end portions of theblade holder and the tube 10, the uprights 13b being shown provided withopenings or slots 13c receiving the pivots 9 oit' the blade holder andthe end portions 1()a of roller 1G. In the example illustrated thepivots 14 of the controlling ineinber 13 are struck out of the metalthereof and extend laterally into holes in the uprights 1b, whereby saidmember is pivotally supported to rock within frame 1 between the stroptensioning means 4.

lVhen the strop A is passed through the razor it will engage thetensioning members 4 and the roller 10. Vhen the razor is moved alongthe strop toward the left in Fig. 3 the blade edge will drag on thestrop for sharpening said edge, the pivots 9 engaging the adjacent endsof slots 1C. Vhen the direction of movement of the razor along the stropis reversed the engagement of roller 10 with the strop will cause thecontrolling member 13 to swing on its pivots 14 relatively to theinitial movement of frame 1 along the strop, as toward the left in Fig.3, in such a way as to cause the blade edge initially to be lifted fromthe strop to prevent cutting the latter, and the pivotsV of the bladeholder' with the end portions of roller 10 will slide respectively inthe slots 1c and 1d of frame 1 iuitil they abut the metal at thecorresponding ends of the slots, during which period the roller 10 willbe rotated by engagement with the strop to rock or swing the blade fromthe position shown in Fig. 3, the parts assuming the position shown inFig. 4, to present the blade edge to the strop. llVhen the razor ismoved along the strop toward the right in Fig. 4 the blade edge will bedragged on ythe strop, and at the initiation of reverse movement of therazor along the strop the controlling member 13, by reason of engagementof roller 10 with the strop, will be moved to the right relatively toframe 1, v(in Fig. 4), to initially raise the blade edge from the strop,and continued movement of the razor along the strop will causerotationofroller 10 to swing ,the blade back to the position shown in'Fig. 3,and so on for each reciprocation of the razor along the strop. By themeans described the rotary or rocking movement of the controlling member13 within frame 1 has the eiect of moving the blade holder and theroller 10 laterally .within said frame While the gears remain in mesh toeii'ect the initial lifting of the blade edge from the strop and therotation of the blade from one stropping position to another in such away that the strop-tensioning inembers 4 upon the main frame 1 will notbe moved by the strop so that the roller 10 may act on the stropindependently of the tensioning members as a means to rock thecontrolling member 13, whereby the blade holder that is slidably carriedbythe main frame may be shifted along the slots 1c to initially raisethe blade edge from the strop without interference from thestrop-tensioning means.

The frame 1 is shown provided with a guard 15 at one side, which isprovided with blade stops 16 shown in the form of hooks adapted toretain the blade -in shaving relation to the guard, (Fig. 2). The base13:l of the controlling member 13 is shown provided with a downwardlyextending projection 13 which may be struck from the metal of said baseand extends through an opening 17 in base 1a of frame 1 in a position toenter a slot 18 in a retaining member 18. The member 18 is shown fittedto sli'de in the direction toward and from the guard and slidablysupported within the upper end of bore 2a of handle 2 against the basela, said member being frictionally retained by means of a spring 19within the handle pressing at one end against a disk 20 to force thedisk frictionally against member 18 for frictionally pushing the latteragainst base 1, so that member 18 will remain in set position. Theopposite end of spring 19 bears against a stop 19a within handle 2,(Fig. 3). The member 18 is shown provided with spaced dependingprojections 18a at opposite sides of the handleV and spaced therefromaffording linger pieces for pushing the slide member back and forth. Thecontrolling member 13 is provided with a projection 21 on one side,which is shown inclined and adapted to engage slide member 18 when thelatter is in the position shown in Figs. 1 and 2 to retain the bladeedge against the stops 16 ofthe guard for maintaining the blade inshaving position respecting the guard. When it is desired to strop theblade edge the member 18 will be pushed from the position shown in Fig.2 to the position shown in Figs. 3 and 4, which will release theprojection 21 `from member -18 and said member will engage theprojection 17 to cause tilting of controlling-member 13 to withdraw theblade edge from the guard stops so that the controlling member 13 willbe free to rock during stropping of the blade edge. lVhen the blade isto be used for shaving the blade will be laid against the guard stopsand the member 18 will be pushed to the right in Fig. 2, to causetilting of the controlling member 13, to engage the blade with the guardstops and to cause the'projection 21 to be engaged by the slide member18 to retain the blade e'dge engaged by the stops 16.

Having now described my invention what I claim is 1. Blade stroppingmeans comprising a frame having spaced uprights, a blade holder and astrop engaging roller geared together, the uprights having meanscooperative With the blade hold-er and with said roller slidably guidingthem for lateral movement, and a controlling member movably carried bythe frame separately from the blade holder and roller and having meanscooperative With the blade holder and roller for initially moving theblade holder to cause the blade edge to rise from the strop byengagement of the latter with the roller at the initiation ofreciprocating movements of the frame along the strop.

2. Blade stropping means as set forth in claim l, in which the means forguiding the blade holder and roller for lateral movement includes slotsin the uprights receiving adjacent portions of the blade holder and theroller.

3. Blade stropping means as set forth in claim l, in which thecontrolling member is provided with openings receiving adjacent portionsof the blade holder and the roller for causing lateral movements thereofrespecting the frame.

4L. Blade stropping means comprising a frame having spaced uprightsprovided with laterally disposed slots, a blade holder having pivotalmeans in some of said slots, a strop engaging roller having portions inother of said slots, means gearing said blade holder and rollertogether, and a controlling member movably carried by the frame andcooperative with said holder and roller for causing movement thereofrelatively to the frame for raising the blade edge from the strop.

5. Blade stropping means comprising a frame having spaced uprights, ablade holder and a strop engaging roller geared together,

the uprights having means cooperative with the blade holder and withsaid roller guiding them for lateral movement, a controlling memberpivotally carried by the frame and provided With openings receiving thepivotal portions of the blade holder and the roller for causing movementthereof relatively to the frame to raise the blade edge from the stropduring initiation of reciprocative movements of the frame along thestrop, the engagement of the roller with the strop causing the gears torock the holder and blade for stropping the blade edge.

6. Blade stropping means comprising a frame having a base and spaceduprights provided With spaced slots laterally disposed, a blade holderhaving pivotal portions operative in some of said slots, a stropengaging roller having portions operative in other of said slots, saidblade holder and roller having With Sraoed Sirop tensioning means, ablade',

holder and a strop engaging roller geared: to,- gotlier, the uprightshaving meanseooperafve with theblade lioldeiand with saidrellen guidingthorn for lateral movements, and e Controlling member pivotallycarried-l b'y the frame between the strop tensioning means andcooperative with the blade holder and' roller for moving them laterallyfor causingA the blade edge to rise from the strop at the initiation ofreciprocating movements of the frame along the strop. A

8. Blade stropping means as set forth in claim 7, in Which thecontrolling member includes a base pivotally carried by the frame andprovided with spaced uprights having openings receiving adjacentportions of the blade holder, the controlling member being operativebetween the uprights of the frame.

9. A safety razor comprising a frame having a blade guard, a bladeholder guided by the frame for lateral and pivotal movements, meansguided by the frame for rotating the holder by cooperation with a strop,a controlling member movably carried by the frame separately from theblade holder and roller and having means cooperative with the bladeholder and with the first named means for moving the blade holderlaterally, and means to retain the blade in cooperation With said guard,

lO. A safety razor as set forth in claim 9, in Which the means to retainthe blade in cooperation with the guard includes a projection on thecontrolling member and a re.- taining member movable relatively to thecontrolling member to engage said projection to cause said controllingmember to retain the blade in relation to the guard.-y

11. A safety razor as set forth in claim 9, in Which the means to retainthe blade in cooperation With the guard includes an inclined projectionon the controlling member, and a slidable retaining member cooperativeWith said projection to cause said controlling member to retain theblade in relation to the guard.

1Q. A safety razor as set forth in claim 9, in which the means to retainthe blade in cooperation With the guard includes a proj ection on thecontrollng member, a retaining member movable relatively to thecontrolling lao,

laol

member to engage said projection, and means to retain the slidablemember in and out of cooperation with said inclined projection.

13. A safety razor comprising a frame having a guard provided With bladestops, a

blade holder carried by the frame for lateral and pivotal movements,means for rotating the holder by cooperation with a strop, a controllingmemberrpivotally carried by the frame and cooperativev with the bladeholder for moving the latter laterally, and a retainer movablerelatively tothe frame and cooperative With the controlling memberfformovingthe blade from the blade stops.

14. A safety razor as set forth in claim 13, in Which the means formoving the convtrol-ling` member includes a projection thereoncooperative with the retaining member, the retamlng member bemg slidablerelative tothe controlling member for actuating the latter.

HENRY J. GAISMAN.

